VP3185-145DA: Large Flow Control with Intelligent Switching! Large 3-Port Solenoid Valve Empowers High-Efficiency Automation
2025-12-26
The VP3185-145DA is a large 3-port solenoid valve produced by Japan’s SMC Corporation, belonging to the VP3145/3165/3185 series. This solenoid valve features an elastic seal structure and a direct piping design. It offers large valve capacity and low exhaust resistance, and can be easily switched between N.C. (Normally Closed) and N.O. (Normally Open) modes, making it an ideal choice for high-flow pneumatic control systems.
Core Product Advantages
- Large Flow Control Capacity With a valve port size of 1 1/2 (40A), it boasts a large valve capacity and low exhaust resistance, meeting the rapid switching demands of high-flow gases. It is suitable for driving large cylinders or actuators.
- Elastic Seal Structure Utilizes an elastic sealing method, offering excellent sealing performance and long service life. Effectively prevents leakage, ensuring system operational reliability.
- Flexible Mode Switching Can be easily switched between N.C. (Normally Closed) and N.O. (Normally Open) modes, adapting to different control requirements with high application flexibility.
- Direct Piping Design Features a direct piping structure, enabling simple installation, space-saving, and facilitating system integration and maintenance.
- Intelligent Control Interface Equipped with a DIN socket-type wiring method. The coil rated voltage is DC24V, supporting standard industrial control signals for easy integration with PLC and other control systems.
Technical Parameters
| Parameter Item | Specification Value | Description |
|---|---|---|
| Valve Size | 1 1/2 | Valve specification |
| Port Size | 1 1/2 (40A) | Piping specification |
| Coil Rated Voltage | DC24V | Standard voltage |
| Lead Wire Connection | DIN Socket-type | Connection method |
| Function | N.C. (Normally Closed) | Normally closed type |
| Pilot Specification | Internal Pilot Operated | Control method |
| Seal Method | Elastic Seal | Seal structure |
| Pilot Pressure Range | 0.2 ~ 0.8 MPa | Operating pressure range |
| Maximum Operating Frequency | 3 Hz | Operating frequency |
| Response Time | 30 ms | Response speed |
| Operating Temperature | 0 ~ 60 °C | Operating temperature range |
Typical Application Scenarios
- Industrial Automation Production Lines Used for directional control of large cylinders and pneumatic actuators, enabling reciprocating motion in automated equipment.
- Material Handling Systems Controls pneumatic grippers, lifting devices, and other actuating components in automated warehousing equipment.
- Packaging Machinery Used for pneumatic control of actions such as marking, cutting, and lid opening in packaging machines.
- Automotive Manufacturing Controls the actions of pneumatic actuators in body welding jigs and assembly lines.
Working Principle
The VP3185-145DA employs a pilot-operated solenoid valve structure. When the solenoid coil is energized, the electromagnetic force opens the pilot orifice. The pressure in the upper chamber rapidly decreases, creating a pressure differential (low above, high below) around the closing element. The fluid pressure pushes the closing element upward, opening the valve. When de-energized, the spring force closes the pilot orifice. The inlet pressure quickly fills the chamber through a bypass orifice, creating a pressure differential (low below, high above) around the closing element. The fluid pressure pushes the closing element downward, closing the valve.
Installation and Usage Precautions
- Installation Requirements The solenoid valve should be installed vertically on a horizontal pipeline. The medium flow direction should match the arrow direction on the valve body. An air filter and oil mist separator must be installed on the inlet side to ensure clean air supply.
- Power Supply Requirements Use a DC24V power supply. The allowable voltage fluctuation range is ±10% to ensure proper operation of the solenoid valve.
- Regular Maintenance Regularly inspect the filter element and clean contaminants promptly, typically every 2-3 months. Regularly check the operating performance of the solenoid valve to ensure long-term stable operation.
Summary
The VP3185-145DA large 3-port solenoid valve is the “intelligent switch” for high-flow pneumatic control systems. It perfectly combines large flow control capability, an elastic seal structure, and flexible switching modes, providing a reliable and efficient gas directional control solution for industrial automation equipment.
Choosing the VP3185-145DA means choosing reliable performance and flexible control to drive your automation system towards higher efficiency!
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